megangrace121
megangrace121
30-03-2017
Mathematics
contestada
What is this I don't know it
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Mariah0313
Mariah0313
30-03-2017
find the area of the small circle then the get the radius of the big circle add both radius' (12) . you would use the normal formula to find the area of the big circle as well . you should get your answer that way !
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smiles4miles
smiles4miles
30-03-2017
3.14*12^2 - (3.14*6^2)
about 39.12
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